Roller side bearing.



v (Ilo Model.)

Patented Mar. 4, |902.

no. 694,549. y

' C. F. HUNTODN.

ROLLER SIDE BEARING.

(Appxrimion med occ. 14 1901.)

UNITED STATES- PATENT OFFICE.

CHARLES F. HUNTOON, OF CHICAGO, ILLINOIS,v ASSIGNOR TO CHICAGO RAILVAYEQUIPMENT COMPANY, OF CHICAGO, ILLINOIS, A COR- PORATIONv OF ILLINOIS.

ROLLER s'lDE BEARING.

SPECIFICATION forming part of Letters -Patent No. 694,549, dated March4, 1902. Application filed October 14, 1901. Serial Nol 78,632. (NomodelJ To if/ZZ whom t may concern.-

Beit known that I, CHARLES F. HUNTooN, a citizen of the United States,residing at the city of Chicago, county of Cook, State of Illinois, haveinvented a certain newand useful Improvement in Roller Side Bearings, ofwhich the following is a full, clear, and exact description, such aswill enable others skilled in the art to which it appertains to make anduse the same, reference being had to the ac. companying drawings,forming part of this specification, in which- Figure 1 is a top planview of my improved roller side bearing, the cover plate being brokenaway at one end to more clearly show the interior. Fig. 2 is a sideelevational view. Fig. 3 is a longitudinal vertical section al view.Fig. 4 is an end elevational view, and Fig. 5 is a verticalcross-sectional view.

This invention relates to a new and useful improvement in side bearingsdesigned particularly for railroad-cars, the object being to construct adevice of the character described in a simple and compact form, theparts being readilyassembled anddismantled, whereby repairs can bequickly and easily made.

With these objects in view the invention consists in the construction,arrangement, and combination of the several parts, all as willhereinafter be described and afterward pointed out in the claims.

In the drawings, 1 indicates a base-castin g forming a housing, saidcasting being provided with perforated lugs or ears 2 at its sides,whereby the device may becsecured in position on the truck-bolster.

3 indicates the side walls, and 4 the end walls. lValls 3 are providedwith recesses 5 in their inner faces and at their upper edges, saidrecesses forming seats and bearings for the roller-spindles. Walls 4 areprovided with openings 6 in their lower edges, as shown in Figs. 3 and4.

7 indicates a longitudinally-disposed partition-wall provided withnotches or recesses S in alinement with the recesses 5.

9 indicates a cross partition-wall provided with openings 10 in itslower edge.

11 indicates cover-plate formed with openings 12, through which therollers protrude,

said cover-plate being secured in position on the housing-casting bymeans of through-rivets 13.A Y.

14 indicates the rollers, each of which is preferably provided with abushing or sleeve l5.

ably inclined or formed sloping on each side of the cross partition-wallS) in order that the discharge of water or dirt from the housing may beaccelerated.

With respect to the above construction it will be noticed that therollers, While projecting through the top of the box-shaped housing forcontact with the body side bearing, are in other respects inclosed, theybeing independently rotatable on aloose spindle. The

axes of the spindles are radial to the king-pin of the truck for obviousreasons and, if desired, can also be inclined. The lugs on the cover,which fit into the recesses, serve to lock the axlesagaiust verticalmovement, but do not prevent their rotation, said lugs also acting toprevent lateral displacement of the cover. With respect to the recesses5 it will be noted that they form blind bearings for the ends of theaxles. The openings in the ends andcenter walls of the housing preventthe lodgment and accumulation of dust and water. Byinclining the bottomfrom the center toward the ends moisture which might accumulate or waterwhich might be thrown on the bearing by the. wheels of the trucks is ledoff.

My improved side bearing is designed especially for street-car service,and owing to the very short curves, sometimes not exceeding atwenty-ive-inch radius, there is an excessive movement of the sidebearing on each side of the central line of the trucks, which makes itimpracticable to use movable groups of rollers or balls for relievingthe friction between the truck and body side bearing, while in mybearing this excessive move- IOO ment is well taken care of by theaniifrietionrollers and axles, which latter have fixed journals,admitting of an unlimited travel of the body-bearing and at the sametime always transmitting pressure directly over the truckholsters. rlherollers being loosely journaled are free and independent of each otherand rotate according to the difference in travel of the different radii.This difference in travel of the rollers on the same spindle makes itimpossible for the rollers to become corroded on or locked in any way tothe spindle. This plurality of rollers and spindles admits of a largearea of contact and a minimum amount of resistance, owing to the rollersbeing loose and independent of each other. The spindles being arrangedon each side of the center of the truck-bolster oii'er lines of contactfor the bearing on the body-bolster, which assists in keeping thetruck-bolster from rocking. The openings in the end and center walls andthe oppositelyinclined bottom wall of the housing prevent dust and waterfrom accumulating in the housing, and in order to permit the VFreecirculation of air through the lower walls of the housing the rollersare elevated above said bottom wall, as shown in Fig. 3.

I am aware that minor changes in the construction, arrangement, andcombination of the several parts of my device can be made andsubstituted for those herein shown and described without in the leastdeparting from the nature and principle of my invention.

Having thus described my invention, what I claim, and desire to secureby Letters Patent of the United States, is-

l. In a side bearing for cars, the combination with a box-shaped base,of spindles loosely journaled therein, and rollers loosely mounted onsaid spindles, said rollers protruding through the top of the box;substantially as described.

2. In a side bearing for ears, the combination with a box-shapedhousing, of a plurality of spindles loosely journaled therein, saidspindles being radial to the king-pin of the truck, and a plurality ofindependently-movable rollers mounted on each of said spindles, saidrollers protruding through openings in the cover of the boxshapedhousing; substantially as described.

3. In a side bearing for cars, the combination with a boxed-shapedhousing formed with blind bearings, of spindles looselyjournaled in saidbearings, and rollers on said spindles which protrude through openingsin the cover of the box-shaped housing; substantially as described.

4. In a side bearing for cars, the combination with a box-shapedhousing, of a plurality of spindles arranged therein, and supported ateach end by bearings formed in the side walls of the box-shaped housing,a partitionwall for supporting the middle portions of said spindles, and.rollers mounted on said spindles on each side of said centralpartition; substantially as described.

5. In a side bearing for cars, the combination with a box-shaped housinghaving blind bearings in its side walls, a central partition alsoforming a bearing for the centers of the spindles, spindles looselymounted in said bearings, and rollers on each side of the centralpartition, said rollers being loosely mounted on the spindles andindependently rotatable; substantially as described.

6. A side bearing for cars, the combination with a box-shaped housing, aloosely-journaled spindle, a bushing loosely mounted on said spindle anda roller fixed to and carried by said bushing; substantially asdescribed.

7. A side bearing for cars, the combination with a box-shaped housingformed with openings in its end walls, and the bottom wall of saidhousing being downwardly inclined each side of a central line, and anantifrietion device mounted in said housing; substantially as described.

8. A side bearing for cars, the combination with a box-shaped housingformed with partition walls, and the bottom wall of said housing beingdownwardly and oppositely inclined, means for admitting a circulation ofair over said oppositely-inclined bottom wall, and anantifriction-device carried by said housing; substantially as described.

S). A side bearing for cars, the combination with a box-shaped housing,of spindles journaled therein, rollers on said spindles, and acover-plate provided with openings through which said rollers protrude,said cover-plate also having lugs which are arranged above' the spindlesto hold the same against vertical movement, said lugs also serving tolock the cover-plate against lateral movement; substantially asdescribed.

10. In a side bearing for cars, the combination with a box-shapedhousing provided with recesses forming bearings, the walls of saidhousing being thickened in the vicinity of said recesses, spindlesloosely journaled in said recessses, and a plurality of rollers mountedon each of said spindles; substantially as described.

1l. In a side bearing for cars, the combination with a box-shapedhousing provided with recesses in its side walls forming bearings, apartition-wall also recessed in alinement with said first-mentionedrecesses, and forming a middle bearing in the housing, spindles looselymounted in said bearings, rollers arranged upon said spindles, a coverformed with openings through which said rollers protrude, and lugs onthe cover fitting into the recesses above the spindles; substantially asdescribed.

In testimony whereof I hereunto affix my signature, in the presence oftwo witnesses, this 7th day of October, 1901.

CHARLES F. II UNTOON.

Witnesses:

E. T. WALKER, M. F. HUNTooN.

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